Cherrybim: No one who actually ever saw a turkey thought it was Treif. The turkey has the Simanim of a Kosher bird. The only Shailah is about whether a Mesorah exists for turkey (which it doesn’t), as I explained above. But yes, the complete consensus nowadays is that it’s an issue of a Chumras HaRama and not an actual Tarfus issue, so they won’t Assur Keilim for that.
(Then again, it’s not so relevant because real Briskers won’t eat anything cooked at a non-Brisker house because Briskers have a large number of Chumros, more than just the turkey. I’ll have to ask R’ Schachter at some point if Briskers would hold that a turkey would Assur the Keilim.)